[#1154] ir: Add info metric

Signed-off-by: Alexander Chuprov <a.chuprov@yadro.com>

internal/metrics/innerring.go

@@ -4,6 +4,7 @@ import (
 	"strconv"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-node/misc"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/metrics"
 	"github.com/prometheus/client_golang/prometheus"
@@ -16,6 +17,7 @@ type InnerRingServiceMetrics struct {
 	eventDuration     *prometheus.HistogramVec
 	morphCacheMetrics *morphCacheMetrics
 	logMetrics        logger.LogMetrics
+	appInfo           *ApplicationInfo
 }
 
 // NewInnerRingMetrics returns new instance of metrics collectors for inner ring.
@@ -46,6 +48,7 @@ func NewInnerRingMetrics() *InnerRingServiceMetrics {
 		health:            health,
 		eventDuration:     eventDuration,
 		morphCacheMetrics: newMorphCacheMetrics(innerRingNamespace),
+		appInfo:           NewApplicationInfo(misc.Version),
 		logMetrics:        logger.NewLogMetrics(innerRingNamespace),
 	}
 }